The process 'Apache FOP' ended with code: 1.The error was: ERROR - Couldn't find hyphenation pattern for lang="en".ERROR - Exceptionorg.apache.fop.apps.FOPException: For PDF/A-1b, all fonts, even the base 14 fonts, have to be embedded! Offending font: /Times-Romanorg.apache.fop.pdf.PDFConformanceException: For PDF/A-1b, all fonts, even the base 14 fonts, have to be embedded! Offending font: /Times-Roman at org.apache.fop.cli.InputHandlerFOP.transformTo(Unknown Source) at org.apache.fop.cli.InputHandlerFOP.renderTo(Unknown Source) at org.apache.fop.cli.Main.startFOP(Main.java:177) at org.apache.fop.cli.Main.main(Main.java:208)Caused by: org.apache.fop.pdf.PDFConformanceException: For PDF/A-1b, all fonts, even the base 14 fonts, have to be embedded! Offending font: /Times-Roman at org.apache.fop.pdf.PDFFont.validate(PDFFont.java:169) ..... etc ......

This means the Apache FOP could not find the hyphenation support for the English language (it isn't available by default). This is not a fatal error and unless you actually want your text to be hyphenated, you can ignore it.

ERROR - Exceptionorg.apache.fop.apps.FOPException: For PDF/A-1b, all fonts, even the base 14 fonts, have to be embedded! Offending font: /Times-Romanorg.apache.fop.pdf.PDFConformanceException: For PDF/A-1b, all fonts, even the base 14 fonts, have to be embedded! Offending font: /Times-Roman at org.apache.fop.cli.InputHandlerFOP.transformTo(Unknown Source) at org.apache.fop.cli.InputHandlerFOP.renderTo(Unknown Source) at org.apache.fop.cli.Main.startFOP(Main.java:177) at org.apache.fop.cli.Main.main(Main.java:208)Caused by: org.apache.fop.pdf.PDFConformanceException: For PDF/A-1b, all fonts, even the base 14 fonts, have to be embedded! Offending font: /Times-Roman at org.apache.fop.pdf.PDFFont.validate(PDFFont.java:169) ..... etc ......

It appears that you have enabled the option "Generates PDF/A-1b output" from Options > Preferences, XML > XSLT/FO/XQuery > FO Processors. The PDF/A-1b output format has requirements that need plenty of tinkering with the Apache FOP config file. In this particular case you have to configure the FOP to embed the font in question (or map that to a different font that you have).If you don't need PDF/A-1b in particular, the simplest way out of this is to disable the option I mentioned and thus generate a generic PDF.